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Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT00867620
Other study ID # 200707055R
Secondary ID
Status Enrolling by invitation
Phase N/A
First received March 22, 2009
Last updated March 22, 2009
Start date August 2008
Est. completion date July 2010

Study information

Verified date February 2009
Source National Taiwan University Hospital
Contact n/a
Is FDA regulated No
Health authority Taiwan: Department of Health
Study type Observational

Clinical Trial Summary

Bladder cancer ranks the ninth in worldwide cancer incidence. Approximate 90% of bladder cancer is the malignancy of urothelium tissues, the urothelial cancer (UC). The mortality of bladder cancer is mainly due to recurrence and metastasis. Unfortunately, the currently available cytology or cystoscopy examination is of limited value because of low sensitivity of early disease. New biomarkers as well as detection technology are thus required to improve early diagnosis. By the aid of quantitative methylation-specific PCR (QMSP), which allows detecting tumor-derived DNA from tissues and body fluids, DNA methylation-based assay is thus developing for early detection and prognosis.

The goal of this proposed project is to develop a panel of DNA-methylation based biomarkers for UC diagnosis, prognosis, and prediction of responses to therapy (especially the recurrence, invasion, survival, and responses to therapeutic agents). Although numerous studies have investigated the aberrant promoter hypermethylation in bladder cancers or UC, inconsistent results are observed. DNA hypermethylation determination may rely on not only the conditions of QMSP, but also the biopsy specimens of different race, environmental expose factors, and regional variation. We thus need to profile the DNA methylation pattern of UC patients in Taiwan to establish a panel of potential prediction biomarkers for local patients.


Description:

In the recent years, technologies of genomics, expression analysis and proteomics have been brought to guide the study of risk assessment and early detection of cancers. This proposed study aims to develop a non-invasive DNA methylation-based assay system elucidating a panel of aberrantly hypermethylated genes from urothelial tumors and urine sediments, to improve the risk assessment of urothelial carcinoma; such as early diagnosis, prognosis, and prediction of response to therapeutic regimes. This proposal will establish several techniques to study the methylation status on gene promoter regions. Three tasks will be achieved in this study: (1) Profiling the aberrant DNA methylation in urothelial carcinoma and determining potential prediction biomarkers. (2) Establishing a non-invasive assay by detecting DNA hypermethylation status in exfoliated cells collected from void urine; (3) Mapping the DNA hypermethylation changes from normal to malignant urothelial tumors and studying the underlying mechanism. Through the collaboration of a genetic toxicologist (Te-Chang Lee, PhD, IBMS), a urologist (Yeong-Shiau Pu, MD/PhD, NTUH) and epidemiologists (Hung-Yi Chiou, PhD, Taipei Medical University), we will explore the risk biomarkers for urothelial carcinoma.


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 82
Est. completion date July 2010
Est. primary completion date
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 40 Years to 80 Years
Eligibility Inclusion Criteria:

- those with histopathological-confirmed urothelial carcinoma will be included.

Exclusion Criteria:

- those were younger than 40 years old or with previous history of any other cancers will be excluded.

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional


Related Conditions & MeSH terms


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
National Taiwan University Hospital
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